pettis



(No Model.)

G; 0. PETTIS.

HEEL PROTECTOR. N0.3 55,661. Patented Jan. 4, 1887.

WWW, 11%;? W

UNITED STATES PATENT OFFICE.

GEORGE O. PETTIS, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE HOGGSON PETTIS MANUFACTURING COMPANY, OF SAME PLACE.

HEEL-PROTECTOR.

SPECIFICATION forming part of Letters Patent 0. 355,661, dated January 4, 1887.

I Application filed October 4, 1886. Serial No. 215,230. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE 0. Farms, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Heel-Protectors; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1, a perspective view of the protector detached; Fig. 2, a lower or face view; Fig. 3, a transverse section, and Fig. 4 a section through a heel cutting through the protector.

This invention relates to an improvement in heel-protectors, and particularly to that class of protectors which are constructed of cast metal, and adapted to be introduced into heels of india-rubber or similar material in the process of molding.

As heretofore constructed the most desirable protectors have consisted of several studs connected by a bar near one end of the studs, so that while one end of the studs is exposed to present a wearing-surface in the face of the heel the bar is surrounded by the material of which the heel is formed and securely holds the studs in place. In the manufacture of rubber heels they are subjected to a very great pressure, and this pressure brings irregular strain upon the bar, and many are broken in forming the heels, and the protector consequently displaced and the heel rendered useless. Thus many heels are lost. In protectors of this class it is desirable thata large amount of wearing-surface should be exposed, and

1 this should be in a connected form,in order that all parts may sustain each other against irregular strain.

The object of this invention is'to produce a protector of cast metal which will not beliable to break during the manufacture of heels and yet expose an extended metal surface for wear.

-The protector is of a frame-like character. A represents one side of the protector, and B the other side, the two sides substantially parallel, and curved to correspond to the heel. The sides are connected at theirends and at one or more intermediate points by bars a.

The metal at the outer edge of the protector is preferably thicker than at the inner edge. the outer edge of the sides and ends recesses b are formed, as shown.

In molding the heel the material from which the heel is formed fills around the protector and into the recesses b, which, in connection with the tapering shape of the sides, securely holds the protector in the' heel, the metal be-' tween the recesses b being exposed to the wearing-surface of the heel.

The frame-like character of the protector gives it great strength to resist irregular strains in forming the heel, as well as in the wear of the heel.

I claim- The hereimdescribed heel-protector of a frame-like shape, composed of the two sides A B, connected at their ends, and said sides constructed with recesses in their outer edges, substantially as and for the purpose described.

GEO. O. PETTIS.

Witnesses:

FRED O. EARLE, LILLIAN D. KELSEY. 

